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TPI

TPI Corporation, headquartered in Johnson City, Tennessee, USA, is a manufacturer of heating, ventilation, air conditioning, and refrigeration (HVACR) components and portable electric heaters. The company’s product portfolio spans replacement controls, switches, thermostats, transformers, fan overrides, heating elements, and portable jobsite heaters. TPI also produces end caps, manual reset limits, and high-limit controls for HVACR systems. These components are designed for use in commercial, industrial, and residential heating and cooling equipment, as well as for temporary heating on construction sites and in garages. TPI’s portable electric heaters, such as the 188-TASA model, are built with safety screens and operate on standard 120V AC single-phase power with NEMA 5-15P plug configurations, offering wattage outputs in the 1.3kW to 1.5kW range. The replacement parts—including elements, transformers, and limit controls—are specified by manufacturer part numbers for direct interchangeability in existing HVACR systems. 3G Electric supplies TPI products globally, offering a range of SKUs that cover both OEM replacement parts and portable heating equipment. The catalog includes items like the 4900200 end cap, 51510005 manual limit, 52335003 transformer, 56811003 fan override, and 71056009/71056020 elements, among others. These parts are typically used for maintenance, repair, and overhaul (MRO) of HVACR systems, where precise fit and functional compatibility are required. TPI’s product line is characterized by standardized electrical ratings and mechanical dimensions, making them suitable for integration into existing equipment without modification. The portable heaters are designed for rugged environments, with safety features such as tip-over protection and overheat shutoff, though specific certifications should be verified per model. 3G Electric supports global procurement of TPI products, providing logistics for industrial buyers who need reliable access to these components for ongoing operations or emergency replacements.

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About TPI

TPI Corporation, headquartered in Johnson City, Tennessee, USA, is a manufacturer of heating, ventilation, air conditioning, and refrigeration (HVACR) components and portable electric heaters. The company’s product portfolio spans replacement controls, switches, thermostats, transformers, fan overrides, heating elements, and portable jobsite heaters. TPI also produces end caps, manual reset limits, and high-limit controls for HVACR systems. These components are designed for use in commercial, industrial, and residential heating and cooling equipment, as well as for temporary heating on construction sites and in garages. TPI’s portable electric heaters, such as the 188-TASA model, are built with safety screens and operate on standard 120V AC single-phase power with NEMA 5-15P plug configurations, offering wattage outputs in the 1.3kW to 1.5kW range. The replacement parts—including elements, transformers, and limit controls—are specified by manufacturer part numbers for direct interchangeability in existing HVACR systems. 3G Electric supplies TPI products globally, offering a range of SKUs that cover both OEM replacement parts and portable heating equipment. The catalog includes items like the 4900200 end cap, 51510005 manual limit, 52335003 transformer, 56811003 fan override, and 71056009/71056020 elements, among others. These parts are typically used for maintenance, repair, and overhaul (MRO) of HVACR systems, where precise fit and functional compatibility are required. TPI’s product line is characterized by standardized electrical ratings and mechanical dimensions, making them suitable for integration into existing equipment without modification. The portable heaters are designed for rugged environments, with safety features such as tip-over protection and overheat shutoff, though specific certifications should be verified per model. 3G Electric supports global procurement of TPI products, providing logistics for industrial buyers who need reliable access to these components for ongoing operations or emergency replacements.

Common Applications

  • Commercial HVAC maintenance — TPI manual reset limits (58604001) for furnace safety circuits
  • Construction site heating — TPI portable electric heater (188-TASA) for temporary warmth in garages
  • Refrigeration system repair — TPI high limit control (51510005) for compressor protection
  • Heater element replacement — TPI elements (71056009) for electric furnace or duct heater restoration
  • HVAC control panel upgrade — TPI transformer (52335003) for low-voltage control power
  • Fan system troubleshooting — TPI fan override (56811003) for manual fan operation in air handlers

Frequently asked questions

Common questions about TPI from 3G Electric.

What types of replacement controls does TPI offer for HVACR systems?

TPI manufactures a range of replacement controls for HVACR systems, including manual reset limits, high limits, transformers, and fan overrides. For example, the 51510005 is a manual limit control, and the 58604001 is a manual reset limit. These components are designed to be direct replacements for specific OEM part numbers, ensuring compatibility with existing equipment. The controls are typically rated for standard HVACR voltages and currents, and they are used in furnaces, air handlers, and refrigeration units to regulate temperature and fan operation.

Are TPI portable electric heaters suitable for indoor use on construction sites?

Yes, TPI portable electric heaters, such as the 188-TASA model, are designed for jobsite and garage use. They operate on 120V AC single-phase power with a NEMA 5-15P plug and include a safety screen to prevent contact with heating elements. These heaters are intended for temporary heating in indoor or sheltered areas where ventilation is adequate. They are not rated for outdoor use or wet locations. Always consult the product manual for specific safety guidelines and clearance requirements.

How do I identify the correct TPI replacement element for my heater?

TPI replacement heating elements are identified by manufacturer part numbers, such as 71056009 and 71056020. To select the correct element, match the part number to your existing heater’s specifications. These elements are designed for specific TPI heater models and have defined wattage and voltage ratings. If the part number is not visible, check the heater’s nameplate or service manual. 3G Electric can assist with cross-referencing based on your equipment details.

What is the difference between a manual limit and a manual reset limit from TPI?

A manual limit control, like TPI part 51510005, automatically resets when the temperature drops below the set point. A manual reset limit, such as part 58604001, requires a physical button press to reset after a trip event. Manual reset limits are used in applications where automatic restart could be hazardous, such as in high-temperature safety circuits. Both types are available as replacement parts for HVACR systems and are specified by their temperature ratings and electrical characteristics.

Can TPI fan overrides be used in commercial HVAC units?

Yes, TPI fan overrides, such as part 56811003, are designed for use in commercial HVACR systems. They are compatible with specific OEM part numbers like P3P5170CA1. These overrides allow manual control of fan operation for maintenance or troubleshooting. They are typically installed in control panels or directly on fan motors. Verify voltage and current ratings against your system’s requirements before installation.

Does 3G Electric supply TPI products?

Yes — 3G Electric (S) Pte. Ltd. supplies TPI products. We stock the TPI catalog and supply genuine factory-original products with full manufacturer warranty and technical support.